LOFT — a women's apparel retailer — is the strongest signal in Portillo's Restaurants' top 10 neighbors, scoring 0.85. That's the structural headline for a casual dining chain: its nearest audience shape belongs to a clothing brand, not another restaurant.

The top 10 spread across five distinct subcategories, confirming the broad shape. Services dominate the cluster: Sharkey's Cuts for Kids (0.84, Beauty Salons and Spas), Pearle Vision (0.84, Optometry), Optometry (0.83, Optometry), and Hand and Stone (0.82, Cosmetic Services) all rank in the top five. Women's apparel appears twice — LOFT at 0.85 and J.Jill at 0.82. Only two neighbors share Portillo's own Restaurants & Eateries category: Panera Bread at 0.80 (Casual Dining, the only same-subcategory match) and Five Guys at 0.78 (Fast Casual Dining). The remaining top-10 slots go to Music & Arts (0.81, Music retail), DSW (0.81, Footwear), and Dick's Sporting Goods (0.80, Sporting Goods). No single subcategory dominates; the cluster spans personal services, apparel, and specialty retail with only a thin restaurant presence.

This broad, cross-category shape suggests Portillo's audience is defined less by dining habits than by a lifestyle profile that cuts across service, apparel, and retail brands.